Cable-guide



N. K. BOWMAN.

CABLE GUIDE. I. APPLICATION man APR. 29. me. RENEWED FEB- 18,1920.

1 351 367 Patented Aug. 31, 1920.

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- CABLE GUIDE.

APPLICATION FLL-ED APR. 29, I918. RENEWED- FEB. 18.1920.

Patented Aug. 31, 1920;

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2 5'1; 25 III I @7 2 20/ nu l7 Q 1 7 k -l fluent To, all whom it may concern]:

Be itknown that I, NEWTON K, BOWMAN, a citizen of the United.flStates,residing at; North Lawrence, in the county of Stark and. State of Ohio, have invented certainnew' and useful Improvementsin Cable-Guides,

UNITED srawrs ur crates,-

NEWTON K. BOWMAN, or NORTH LAWRENCE, OHIO.

CABLE-GUIDE.

Specification of Letters Patent.

Application. filed April 29,1918, Serial No; 231,528. Renewed Februarv18,,1920.--Seria1 No. 359,544.

of which the following is a specification.

' This invention relatesto an improved cable guide for mining machines and gathering motors and has as'its primary object to r provide a device of this character which will automatically adjust itself to any direction from which the cable may be drawn.

The invention has vas a further object to provide a guidewherein the base ofthe de-:

vice will be electrically insulated with respect to its support so that metalguide rollers or" sheaves may be employed upon the guide for receiving the, cable, the use of such rollers, of course, tending to prolong therefliciencyj of the device. V

nd the i v n ion has a Still further v0b ject to provide a construction wherein the guide rollerslo'r sheaves'will be formed to fit the cylindrical shape of thecable so that the cable insulation will 'be worn evenly by thesaid guide rollers 'or-sheaves, upon all sides of the cable.

Other and incidental objects will appear as the description proceeds. In the draw- 7. ings wherein I have illustrated the preferred embodiment] of the invention, and wherein similar reference characters des gnate cor.-

VleWS 1 Figure, 1 is a perspective view of my im proved cable guide 'andillustrating theman-I nor in which a cable is threaded there g I the upper end of the post] within the said opening Adjacent itsupper' end the body;

through,

c Fig. 2 is a side elevation of the device," i

Fig. 3 is a horizontal sectionrtalienon, the line 3-3 of Fig.2 and looking in the direction of the arrows, thisview particularlv showing the swivel mounting of the guide yoke of the device.

directionof the arrows, this view partic j ularly illustrating the manner 1n whlch the; base of the device ;is insulated from its support. I i i In carrying out the invent on I employ an port.

post or trunnion 12.5 Formed through ope menacing; 31, {1920.

thereof are suitable-openings and tightly fitting in, these openings are,ras particularly 7 shown in Fig. 5 of the drawings, bushings 13 of suitable insulating material. These bushlngs are adapted to removably receive bolts or other j suitable vfastening devices "there through for connectingthe base with its support, such support; beingiconventionally illustrated in the drawings. at 15. Bearing between the nuts of the bolts at their upper endsandthe base 10 are washers 16 overlying the upper ends of the bushings. 13. These washers are also formed of suitable insulating material, andv disposed between the-base and its support 15 is a plate 1-7.

This, plate, like the bushings 13 and wash I' erslG, is formed of suitableinsulating mate-f rial so that the base is thus effectually 'electrifcally insulated. with respect to its sup Mounted upon the 'base isthej body 18 of: t the guide. This body is preferably castand, I

in its general'shape, resembles an oblong block. Formed through the body, adjacent its lower end is a transverse, opening 19 de fining a web 20 at the bottom endofthe block and formed through this web axially of the body is asuitable opening which freely. receives the post 12 of the base projecting into the; opening 19 of the body.- Connecting the body with the base to swivel upon the said post isa cotter pin onother suitable fastening device 21 inserted through f 18 is, atjthe rear side Of'its'verticaI axis, formed with a transverse-opening 22 dis- 1 posed at substantially right aiigle s tov the openingt'19of the body. The opening 22 the body above and below saidlopening are confronting laterally J'directed arms 24.,

Mounted between these in a plan medially of the opening are spaced-horizou tally disposed guide rollers orsheaves 25 j ournaled upon pivot pins 26 fitted through I thesaid arm'sandpreferablyheld in place bysuitable cotter pins; The guidejrollers 25 are constructed ofmetal', and, as particularly;

shown in Figs. ofthe drawings, are

formed with deeply cut concave faces to fit of the web 23 of the body.

around the circumference of a cable received therebetween.

Mounted upon the body 18 in a plane with the guide rollers 25 is a guide yoke 27 provided with a fianged annular base 28 above the said trunnion is a suitable channel 32 into which lubricant may be introduced for lubricating the said trunnion. Mounted between thearms of the yoke are spaced guide rollers or'sheaves 33 ournaled upon pivot pins 34 extending through the said I yoke arms and preferably held in place by r suitable cotter pins. The guide rollers 33 are similar to the guide rollers 25 and are also constructed of metal, being formed with I deeply cut concave faces as in the instance of the rollers 25, to fit aroundthe circum ference of a cable; Asparticularly brought out in Figs. 3 and 4c of the drawings,-the outermost roller 33 is journaled in a plane intersecting the projected axis of the trunnion 30 of the yoke while the innermost roller 33 is journaled at a point in the rear of the first roller and at one side of the said projected axis. V I

As will now be clear, a cable, as conventionally illustrated at 35, may be threaded between the guide rollers 33 of the guide yoke through the hollow trunnion 30 of the said yoke and between the guide rollers 25 of the body 18 of the guide to a suitable spool therefor. Then, as the cable is wound upon the spool, the guide body may swivel upon the base 10 while theguide yoke may swivelupon the body of the. guide in a plane at substantially right angles to the plane of movement of the guide body so that the guide will readily adjust itself automatically to any direction from which the cable'is drawn. Owingto the deeply cut concave'facesof'the' guide rollers 25 and 33,

these rollers will fit snugly around the circumference of the cable to consequently wear equally upon all sides of the insulation of the cable. Tendency toward flattening ofthe' cable'at one side by 'the said guide rollers 'will accordingly be reduced .to a

minimum and since the base'lO of the device is insulated with respect to itssupport to prevent short circuiting from the cable through the guide, it becomes possible to form the guide rollers of metal and thereby eliminate the undesirable features of wooden rollers'as heretofore used. v

I, therefore, provide a particularly sim ple and efficient construction for the purpose set forth and in order to add 'to' the convenience of the user of the guide, I- preferably equip the guide with a cable splice. r

This cable splice is formedof mating cha nneled blocks 36"and 37' respectively.- The block 36 is, atone end, provided with a lateral extension 38- which receives a machine bolt or other sultable fastenlngdevice connecting the said block with the upper end of the body of the guide. Upstanding from this block at opposite sides of-the channel therein are spaced guide pins 39 and, as will now be particularly observed upon reference to Fig. 1, the'block 37 is, at opposite sides of its channel, provided with spaced openings adapted to loosely'receive these pins. The ends of a cable to be spliced may thus be placed inthe 'mating channels of the blocks therebetween and the block37 driven down upon the pins 39 against a suitablesplice for the cable for clamping the said splice about the cable ends. Connecting the block- 37 with. theblock 36 is a short length of chain or other suitable flexible element 40 designed to preventloss of the former block. I

Having thus described the invention,

upon the body to turn thereon-in a plane at substantially right angles to the plane of movement of the body andflformed with a hollow trunnion journaled through the body, spaced guide rollers carried by the yoke at one end of saidtrunnion, and spaced guide rollers carried by the body at the opposite end of said trunnion. r I

3. A cable guide including a base,'a body axially rotatablethereon, a guide yoke rotatable upon the body and projecting laterally therefrom, andcoacting guide rollers carried by the body and yoke respectively. 4:. A cable guide including a base provided with a trunnion, a body rotatable upon said trunnion, a guide yoke having a trun nion journaled uponjthe body at an angle to said first mentioned trunnion for sup porting the yoke to. turnwith respect to the body, and coacting guide rollers carried by, the yoke and body respectively] v 5. A cable guide including a base, a rotatable thereonand formed with an open body i ing, a guide yoke having a hollow trunnion journaled through the body for supporting the yoke to turn thereon at'an angle to the plane of movement of the 'bodyand entering said opening, and coacting guide rollers mounted upon the body at the said opening and upon the yoke respectively and disposed in a plane with the said trunnion.

6. A cable guide including a base, a body rotatable thereon and provided with anopening, confronting arms projecting from the body at oneside of said opening, spaced guide rollers mounted between the said arms,

a guide yoke having a hollow trunnion ournaledthroughthe base in a plane with said guide rollers for supporting the yoke to turn 'upon the body in a plane at an'angle to the plane of movementof the body and entering the said opening, and spaced guide rollers mounted upon the yoke in a plane with said trunnion. V

7 A cable guide including a base, a body rotatable thereon, a guide yoke rotatable upon the body at an angle to the axis of rotation of the body, and coasting guide rollers carried by the yoke and body respectation of the body, coactin tively, the said guide rollers being formed with deep cut concave faces to fit around the circumference of a-cable. a

8. A cable guide including abase, a body rotatable thereon, a guide yoke rotatable upon the" body at an angle to the axis of roguide rollers carried by the yoke and b0 y respectively, and means for 'insulatin the base with respect to a support there or.

9. A cable guide including a base having a trunnion rising therefrom, a body formed with a'transverse opening and swiveled upon the said trunnion, the body axially receiving the trunnion to project into the said opening, meansconnecting the body with the base and engaged with the trunnion within the said opening, a guide yoke swiveled upon the body in a'plane at an angle to the plane of movement of the body and provided with a hollow trunnion, spaced guide rollers car ried by the yoke at one end of said trunnion, and spaced guide rollers carried by the body at the opposite end of said trunnion.

In testimony WllGI'GOfI afiix my signature.

NEWTON K. BOWMAN. [L.s.] 

